During a fishing trip out with his father, Mason, Steven caught a large tooth on his line. Later, he made it into a necklace to celebrate the find. But Steven had an infected cut accidentally made from the tooth. Initially, this was all it was, but over time, the infection grew to reptilian scales and skin. Similar to that of Killer Croc. This spread across his body until he also started exhibiting reptilian traits in his personality. This led to him being chained by his father until he eventually escaped. Starting his killing spree with a first kill that; was later mistaken for a missing persons case.[1]
Killer Croc vs Batwoman.
Steven later killed two teens in a pool, as well as two men, and took their bodies to Gotham's sewers. He also kidnapped Whitney Hutchinson in the woods and took her to the sewer to eat her later. His father followed him to the sewer and tried to protect him from Batwoman, but Steven killed him anyway. When Steven was finally going to kill Whitney, he was stopped by Batwoman and incarcerated in the Arkham Asylum.[1]
Before Steven's mutation, he was a happy teenager who enjoyed fishing with his father, Mason.
Steven as Killer Croc.
After Steven's mutation, he devolved into a feral animal with an unsatisfied hunger, as he will kill anyone without hesitation, such as his father, Mason.
Powers and abilities[]
Powers[]
Meta-human/Reptilian physiology: After being exposed to Killer Croc's tooth, Steven took on a similar reptilian biology with enhanced physical attributes.[1]
Steven is shown to have incredible strength, able to toss around and overpower fully grown adults.[1]
Superhuman durability: He is shown to be incredibly durability as any attacks made by Ryan Wilder had little effect on him.[1]
Sharpened fangs and claws: He has sharp reptile-like fangs and claws that he uses in battle.[1]
Extendable mouth: As a side-effect of becoming reptilian, the sides of his mouth extended through his cheeks, looking similar to a Glasgow smile when not fully opened.[1]
Infection: When being scratched by Killer Croc's tooth, their physiology changes and is transformed into a creature just like Killer Croc.[1]
Abilities[]
Skilled hand-to-hand combatant: Though not a formal fighter, Steven uses his enhanced strength and claws to overwhelm his prey, even overpowering Ryan Wilder.[1]
Expert swimmer: Steven's reptilian body grants him an increased proficiency with swimming in bodies of water.[1]
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